One​‍​‌‍​‍‌ of the main controversies that has persisted for decades is that of MSG (monosodium glutamate). A question that is frequently asked is whether MSG is bad for the body and if it causes harm. The fact is that MSG has been a part of the food industry for more than a hundred years as a flavor enhancer—especially that lovely savory flavor typical of MSG umami—however, people still ask what the impact of it is on the human body and various organs. At Discover MSG, we think that understanding comes from research rather than from being scared. Therefore, let's figure out what MSG really is, how the body uses it, and whether it really has to be so ​‍​‌‍​‍‌controversial.

What Exactly Is MSG?

Monosodium​‍​‌‍​‍‌ glutamate is a simple molecule made of sodium and glutamate; hence, MSG means Monosodium Glutamate. Glutamate is an amino acid that is a part of the natural structure of such foods as tomatoes, mushrooms, and cheese. The combination of sodium with glutamate leads to a most powerful flavor enhancer, thus making the savory flavor of soups, snacks, meats, and a multitude of packaged productsmore delicious.

While being tellingly hided under the block of sodium in processed foods, MSG is way better than salt. To be more precise, gram for gram, MSG contains almost two-thirds less sodium than salt, thus enabling manufacturers to lower a product's sodium level by substituting part of the salt with ​‍​‌‍​‍‌MSG.

How the Body Processes MSG

Essentially,​‍​‌‍​‍‌ your body doesn't see MSG as something that needs to be rejected, rather - it uses the same pathways for the glutamate that comes from the natural products.

What really occurs in your body after the intake of MSG:

• Glutamate is being degraded in the gut, similarly to any other amino acid.
• It is an integral part of metabolic functions, for example, it helps to maintain a healthy gut and facilitates the communication between brain cells.
• Sodium from the small amount of salt that goes with the MSG is taken in just like any other sodium coming from the diet.

Since glutamate is a regular nutrient, your digestive system is perfectly capable of handling it without any ​‍​‌‍​‍‌problems.

So Why the Concern?

Much​‍​‌‍​‍‌ of the negative talk about MSG traces back to a once popular idea called “Chinese Restaurant Syndrome,” which was based on a brief 1968 that linked MSG to headaches and discomfort. Since then, numerous scientific studies, including those of the FDA, the World Health Organization, and other global food-safety agencies, have not been able to find any consistent evidence that MSG in normal food amounts causes damage to the organs or general health.

Nevertheless, a few people who claim to be sensitive to MSG, identify it as an occurrence of symptoms of which the most common are:

• Flushing
• Head pressure
• Tingling
• Temporary ​‍​‌‍​‍‌headaches

These reactions tend to be mild, short-lived, and rare. They are not considered harmful to organ systems.

Is MSG Bad for the Organs? What Research Says

There is no scientific proof that MSG damages organs such as the heart, liver, kidneys, or brain when consumed at levels typically found in foods. Human studies do not show long-term toxicity or organ-specific harm.

Here’s what current research supports:

1. Brain Health

MSG does not cross the blood–brain barrier in any meaningful amount. That means dietary glutamate doesn’t directly enter the brain or overstimulate neurons, contrary to common myths.

2. Heart and Blood Pressure

The sodium in MSG is relatively low. However, individuals sensitive to sodium overall should still be mindful of total sodium intake—not because of MSG itself, but because high sodium consumption from processed foods can contribute to high blood pressure.

3. Liver & Kidney Function

Healthy livers and kidneys process MSG like any other nutrient. No human studies show MSG causing organ stress or long-term damage.

The Bigger Issue: Sodium in Processed Foods

Monosodium​‍​‌‍​‍‌ glutamate (MSG) is often blamed for causing various health issues, but the truth is that the main culprit is the excessive intake of sodium through processed foods. This has been clearly linked to the development of high blood pressure and heart problems. Paradoxically, one reason why MSG is not such a bad additive is that it can actually be used to reduce the total sodium content of a food product. This is because it gives a strong umami taste, so less salt is needed.

To save on salt, food manufacturers are increasingly turning to the use of MSG. It is, therefore, a potential instrument that can be utilized for the benefit of public health ​‍​‌‍​‍‌nutrition.

A Balanced Perspective

MSG​‍​‌‍​‍‌ is not a "bad" ingredient - it's just an ingredient that is often misunderstood. For the majority of people, it is a safe, extensively studied, and even effective means of lowering the amount of sodium in packaged foods. As with any ingredient, using it in moderation is important, but the available research simply does not support the notion that MSG causes damage to the body or organs.

At Discover MSG, we want to help consumers realize what they are putting in their bodies. Once you get past the myths, it is quite evident: monosodium glutamate is MSG, but it is also a natural, long-studied, flavor enhancer that can be considered a part of a balanced ​‍​‌‍​‍‌diet.